Comparison

NotePlan vs Soulver 4

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

NotePlan

Organize your tasks, notes, and calendar in one unified app. Quickly plan your day with Markdown, link notes bi-directionally, and stay on top of your to-dos with powerful review and search features. Seamlessly integrates with your existing calendars and syncs across all your Apple devices.

Highlights
  • Unified task, note, and calendar view
  • Markdown for quick task and note creation
  • Bi-directional note linking
  • Calendar integration (iCloud, Google, Exchange)
  • Flexible recurring tasks
  • Global Command Bar for fast navigation
  • Plaintext note storage
Features
Read full description

Having trouble planning your day, managing your to-do list, and organizing your notes? Always jumping between apps and losing track of what to do and where you put things? Say hello to NotePlan! NotePlan lets you manage everything in one place: your tasks, notes, and calendar. Perfect for project managers, designers, researchers, writers, students, or anyone who wants to be organized and efficient. QUICKLY PLAN YOUR DAY WITH MARKDOWN • Plan your day by seeing your calendar, notes, and tasks in a single view • Create tasks and notes quickly with Markdown • Add #tags to organize tasks and notes • Use @mentions to find people • Reschedule to-do items easily • Create flexible recurring tasks • Work faster with autocomplete BUILD YOUR NETWORK OF NOTES • Create your own network of notes • Organize any way you want to: from simple folders over P.A.R.A. to a Zettelkasten system • Bi-directional notes: link your calendar and your notes in any direction, automatically • Cross-reference and link notes easily STAY ON TOP OF THINGS WITH REVIEW • Search all tasks and notes, instantly • See all open tasks with the click of a button • Get a list of overdue to-do items • See upcoming tasks at a glance • Create custom filters with your own queries using status, #tags, @mentions, or even text SEAMLESS INTEGRATION WITH YOUR CALENDAR • Create events and reminders right in NotePlan • Support for iCloud, Google, and Exchange calendars • Time-block tasks on your calendar simply by typing AVAILABLE ON MAC, IPHONE & IPAD • Sync everything between your Apple devices • Use any sync method you like: CloudKit or iCloud Drive • A single subscription for all your devices OPEN, PRIVATE & FAST • All your notes are stored in plaintext so you're never locked in • Your information is private and cannot be accessed • Enjoy lightning speed thanks to local files and native apps ANY THEME YOU WANT • Choose from a variety of built-in themes • Work with light or dark versions • Create your own custom theme SHORTCUTS FOR MAXIMUM SPEED • Extended Markdown syntax support with customization options • Move around without ever leaving the keyboard • Find everything with the Global Command Bar NotePlan is developed independently and prioritizes user features and requests. We have long-term roadmaps and listen to customers to improve the apps. - - - - - Price may vary by location. Subscriptions will be charged to your credit card through your iTunes account. Your subscription will automatically renew unless canceled at least 24 hours before the end of the current period. After purchase, manage your subscriptions in App Store Account Settings. - - - - - Email: hello@noteplan.co Web: noteplan.co Discord: https://discord.gg/D4268MT Twitter: NotePlanApp Reddit: reddit.com/r/NotePlanApp Learn NotePlan course: https://noteplan.eo.page/newsletter Terms of use: http://noteplan.co/tos/ Privacy policy: https://noteplan.co/privacy/

About

Soulver 4

This app combines the functionality of a notepad with a powerful calculator. It allows users to perform complex calculations using natural language, supports unit conversions, date math, and live currency conversions. Organize your calculations in sheets with text comments and share them as PDFs.

Highlights
  • Natural language calculations
  • Unit and currency conversions
  • Date and time math
  • Live currency and stock prices
  • Customizable accessory keyboards
  • Spreadsheet-like line references
  • Variables and conditional statements
Features
Read full description

Ever reach for a calculator and the back of an envelope to work something out? That's what Soulver is for. It's a natural-language notepad calculator: think through a problem line-by-line, using plain words and numbers. The answers appear alongside each line as you type. Soulver isn't just a calculator app — it's the paper you'd scribble on to figure something out. Except this paper does the numbers for you, so you stay thinking at the level of your problem. 20% of $1,480 | $296 $100 in EUR | €86 240 km in miles | 149 mi $1,200 + 15% tax | $1,380 3 weeks from today | June 21 Because Soulver uses sheets (like Notes), you can explore different ideas: weigh options, change variables and watch everything update. WHAT CAN SOULVER CALCULATE? – Live currency conversions — 190 currencies, including crypto – Percentages in plain language — "20% off $50", "$50 is what % of $200" – Unit conversions — hundreds of units across length, weight, volume, data and more – Dates & time — "days until Christmas", time intervals, clock and video-timecode math – Time-zone conversions — "3pm New York to London" – Sums & averages – Financial functions — compound interest, mortgage repayments, hourly rates It's the closest thing to an on-device universal calculator ever created. DESIGNED FOR IPHONE – A meticulously designed numeric keyboard that makes calculating fast – Six specialised accessory keyboards — for currencies, percentages, dates & times, and variables – Build your own custom keyboard with the buttons you reach for most BEST-IN-CLASS ON IPAD – Multiple windows, Slide Over & Split View — float Soulver alongside Notes or Safari – Full Magic Keyboard support with dozens of keyboard shortcuts – Scribble & Apple Pencil – Find & replace, a line-styling palette and a powerful text editor – Automation with URL schemes & Siri Shortcuts POWER USER FEATURES – Multi-word variables — "total cost = $750" – Inline tokenized references to previous answers – Subtotals, tags & trip planning – Wolfram|Alpha integration – Headings, comments, labels & dividers to structure long sheets – Custom units and global variables in the definition sheet SHARING & SYNC – Sync your sheets with Soulver 4 for Mac via iCloud – Export to PDF & plain text, or send beautiful HTML emails – Share a calculation as an image — just take a screenshot ONE TIME PURCHASE Soulver is a one-time (non-subscription) purchase. We've been refining and improving Soulver since 2005, and major paid updates average once every 7 years. Try it free for 60 days, no commitment, no automatic charge. —————————————————————————————— Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

NotePlan4 screens
Soulver 44 screens

Verdict

The call

The clearest difference is monetization model: Soulver 4 at paid against NotePlan's subscription. NotePlan's advantage is review sentiment (85% vs 76%) and ratings volume (1.5K vs 429). On price, rating, update cadence and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. NotePlan sells 8 in-app purchases, starting at $4.99 per 7 days and Soulver 4 sells 14 in-app purchases, starting at $26.00 per year. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for NotePlan against 4.9 for Soulver 4. Both are backed by a comparable volume of ratings — 1.5K and 429 respectively. Written reviews are what separate them: 85% of NotePlan's written reviews are positive against 76% of Soulver 4's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 18, 2026 and October 14, 2026 respectively.

Scorecard4 real differences · 6 level
NotePlan versus Soulver 4: the parameters behind the verdict, then further details
ParameterNotePlanSoulver 4
PriceFreeFree
Rating4.8 (1.5K ratings)4.9 (429 ratings) — better
Positive reviews85.1% of reviews — better76.0% of reviews
Number of ratings1.5K — better429
Update frequencyMonthlyMonthly
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionPaid — better
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, Mac
Requires iOS15.0 — better17.6
Further details — not scored
Size210 MB39 MB
Age rating4+4+
DeveloperNotePlan LLCZac Cohan

Customer experience

NotePlan

All ratings1,506 ratings
Positive95.2%
Neutral1.9%
Negative2.9%
Written reviews476 reviews
Positive85.1%
Neutral4.6%
Negative10.3%

Soulver 4

All ratings429 ratings
Positive97.7%
Neutral0.5%
Negative1.9%
Written reviews242 reviews
Positive76.0%
Neutral7.9%
Negative16.1%

User reviews

NotePlan

From 1.5K App Store ratings

What we love

  • 🚀 Powerful note-taking and task management
  • 👍 Seamless calendar and reminders integration
  • 💡 Flexible and customizable workflow
  • 🔒 Secure and open-format data storage
  • 👍 Responsive and helpful developer

Room to improve

  • 💰 Expensive subscription model
  • 🐛 Occasional sync and performance issues
  • 👤 Limited collaboration and sharing features

Soulver 4

From 429 App Store ratings

What we love

  • 💻 Powerful calculation tool
  • 📝 Seamless note-taking integration
  • 🔢 Intuitive natural language input
  • 🗂️ Organized folder and sheet management
  • ⚙️ Extensive unit conversion capabilities

Room to improve

  • 💰 Expensive one-time purchase price
  • 🔁 Separate purchases for Mac, iPad, and iPhone
  • 🤖 AI integration requires additional subscription
  • 🐛 Occasional crashes and bugs reported
  • 📊 Limited spreadsheet-like functionality

Bugs and requests

NotePlan

Reported bugs

2 issues
  • Inconsistent sync between devices
  • Crashes when opening certain files

Requested features

4 requests
  • Improved iPad and mobile app experience
  • Better integration with other productivity apps
  • More automation and scripting capabilities
  • Weekly or monthly calendar view

Soulver 4

Reported bugs

3 issues
  • Crashes when using certain emojis in sheet titles
  • Issues with iCloud sync and data migration from older versions
  • Inconsistent behavior when modifying variables and formulas

Requested features

4 requests
  • Improved iPad and iPhone UI/UX
  • Enhanced data export and sharing options
  • More advanced mathematical and scientific functions
  • Ability to define custom units and unit conversions

In-app purchases

8 purchases

NotePlan

Subscriptions8
  • Personal Weekly$4.997 Days
  • Personal Monthly$6.991 Month
  • Personal Monthly1 Month trial$11.991 Month
Show 5 more
  • Personal Monthly2 variants$12.001 Month
  • Personal Annual7 Days trial$59.991 Year
  • Personal Annual7 Days trial2 variants$99.991 Year
  • Personal Annual1 Month trial$119.991 Year
  • Business Class1 Month trial$199.991 Year
14 purchases

Soulver 4

Subscriptions1
  • AI Assistant, Stocks & Weather$26.001 Year
One-time13
  • Complementary UpgradeFree
  • 30-day free trial (for iPhone)Free
  • 60-day free trial (for iPad)Free
Show 10 more
  • 60-day free trial (for Mac)Free
  • Soulver 4 for iPhone (upgrade)$7.49
  • Soulver 3 for iPhone$14.00
  • Soulver 4 for iPhone$15.00
  • Soulver 3 for iPad$20.00
  • Soulver 4 (Upgrade from Soulver 3)$29.00
  • Soulver 4 (Promotion)$39.00
  • Soulver 3 for Mac$39.00
  • Soulver 4$54.00
  • Soulver 4$59.00

Questions

Is NotePlan free?
NotePlan is free to download, with in-app purchases available.
Is Soulver 4 free?
Soulver 4 is free to download, with in-app purchases available.
Which has better reviews, NotePlan or Soulver 4?
Soulver 4 is rated higher. NotePlan averages 4.8 out of 5 from 1.5K ratings, while Soulver 4 averages 4.9 from 429 ratings.
Do NotePlan or Soulver 4 have ads?
Neither NotePlan nor Soulver 4 shows ads.
Which is updated more often, NotePlan or Soulver 4?
NotePlan ships an update monthly, and Soulver 4 monthly. Most recently, NotePlan was updated on October 18, 2026 and Soulver 4 on October 14, 2026.

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